For one mama, the solution was obvious — a hammock seat that attaches to the seatback in front of her so baby has a comfortable place to rest and play. With that in mind, FlyeBaby  ($45) was born. A sling-like design that includes a five-point harness, FlyeBaby turns almost any airline seat (except an exit row and bulkhead seats) into baby-friendly space. According to the company, the seat can also be used on some dining room chairs to create an instant high chair when traveling. With flight costs steadily increasing and space at a premium, what do you think?